纳米二氧化钛粉体的光催化性能

Studies on Photocatalyic Properties of Nano-Titania

摘要:

以紫外灯为光源,采用TiO_2悬浮体系,利用分光光度法,研究了各种实验条件对光催化效果的影响。结果表明:光强、甲基橙的初始浓度、TiO_2的浓度和晶型、溶液pH以及掺杂离子等对降解效率都有较大的影响。

Abstract:

Photocatalytic degradation of methyl orange in water was studied with UV lamp as light source and titanium dioxide as catalyst. The mechanism of photocatalytic degradation and the effect factors are proposed by spectrophotometry. The results indicate that the initial concentration of methyl orange, catalyst loading, pH , the light intensity, and transition metal doping on TiO2, have obvious effects on the degradation rate.